The crisis in Greece affect the euro very much. If the problem is not solved in near time or if Greece doesn't leave the European Union than the euro will drop. That is the reason why the union has to do something about this 
For the moment the problems were resolved. Greece has accepted the accords with the European Union so for a while must not be other unexpected things. Even with the internal problems of Tsipras (within its party) must not be problems for the euro.